#define  _CRT_SECURE_NO_WARNINGS 1
#include <stdio.h>

int main()
{
    int n, m, i = 0, j = 0;
    int arr1[100] = { 0 };
    int arr2[100] = { 0 };
    scanf("%d %d", &n, &m);
    for (i = 0; i < n; i++)
    {
        scanf("%d ", &arr1[i]);
    }
    for (j = 0; j < m; j++)
    {
        scanf("%d ", &arr2[j]);
    }
    for (i = 0, j = 0; i < n && j < m;)
    {
        if (arr1[i] < arr2[j])
        {
            printf("%d ", arr1[i]);
            ++i;
        }
        else if (arr1[i] > arr2[j])
        {
            printf("%d ", arr2[j]);
            ++j;
        }
    }
    if (i == n && j < m)
    {
        for (; j < m; j++)
        {
            printf("%d ", arr2[j]);
        }
    }
    else
    {
        for (; i < n; i++)
            printf("%d ", arr1[i]);
    }
    return 0;
}